baber/WOPTO huggingface dataset:
Patent GB-532619-A (GB)
Title: Wave transmission networks
IPC: H01Q5/00
Filed: 1939-09-13
Abstract: 532,619. Impedance networks ; duplex wireless signalling. STANDARD TELEPHONES & CABLES, Ltd. Sept. 13, 1939, No. 25696. Convention date, Nov. 5, 1938. [Classes 40 (:iii) and 40 (v)] A network for passing a frequency f1 and suppressing a frequency f 2 comprises a series portion, e.g. a (2n-1) #/4 length of line introducing a 90 degrees phase shift at the frequency to be suppressed and a pair of shunt elements each of which is resonant at the frequency to be suppressed and antiresonant at the frequency to be passed. Where f 1 is less than f 2 the shunt impedances may have the forms shown in Figs. 5 to 8 and where f is greater than f 2 they may have the forms shown in Figs. 11 to 14. In Figs. 7 and 13 elements 31, 42 are provided to give an impedance transforming effect. In Figs. 8 and 14 use is made of a.length of transmission line as an impedance element. Instead of any one of these forms the corresponding inverse form may be connected up through a series element, e.g. a length of line introducing a 90 degrees phase shift at both the frequencies concerned. Several sections may be used in series. Where networks are to be connected in parallel they are terminated at the parallelconnected ends in a section of line which is an odd multiple of <SP>#</SP> 4  of the wave to be suppressed. The invention may be used for associating two or more receivers or transmitters with a common aerial. As shown in Fig. 20 however the aerial A is common to a transmitter 56 and receiver 57. The receiving branch includes two line sections of length (2n-1) <SP>#T</SP> 4  where # T is the transmitter wavelength and two shunt elements Z2 resonant at the transmitter frequency and anti-resonant at the receiver frequency. The transmitter branch includes two line sections of length (2n-1) #R/4, where #R/4 is the receiver wave length and shunt impedance Z1 which is resonant at the receiver frequency and anti-resonant at the transmitter frequency and an impedance Z2 which is the reverse of Z1 and is connected up through a length of line such as to introduce a 90 degrees phase shift at both frequencies.
Patent GB-713152-A (GB)
Title: Improvements in and relating to dynamo-electric machines
Inventor: CARFRAE WILLIAM JOHN
IPC: H02K9/00
Filed: 1952-10-14
Abstract: 713,152. Cooling dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 14, 1953 [Oct. 14, 1952], No. 25731/52. Class 35 Ducts to permit radial coolant flow are provided between the conductors and the slot walls and the conductors have grooves to allow the coolant to flow across the slot (circumferentially) the coolant being applied through an extension of the conductor slot entering by one side of the latter and leaving at the opposite side of the slot mouth. As shown, the the rotor conductors are bipartite with grooves 7, Fig. 3, and are separated by insulators 5 which have notches at close intervals along both sides to permit radial flow of hydrogen which enters by the slot extension 1 and leaves at 8.
Patent GB-680176-A (GB)
Title: An improved expanding bracelet or band
IPC: A44C5/08
Filed: 1950-10-23
Abstract: 680,176. Bracelets. NOBS, H. Oct. 23, 1950, No. 25744/50. Class 43. In an expanding bracelet wherein frame-like elements A are interconnected by tubular elements B each containing a spring 3, each framelike element A comprises two elongated end caps 1 and two side bars 2; which are assembled by inserting enlarged heads of the bars 2 through enlarged ends 7<SP>1</SP>, 8<SP>1</SP> of. slots 7, 8 or through an enlarged part of a single slot in strips 4 so fixed one in each end cap that they are spaced from the bottoms of the caps, said bars 2 then being slid to the other end of their respective slots or to opposite ends of the single slot where they are held by the action of the springs 3, each spring being confined between one of said bars 2 and the opposed end of the associated tubular element B, the other end of which embraces the adjacent bar 2 of the next frame-like element A. Each tubular element carries bent-over tongues 9 at the end against which the spring bears, said tongues projecting into the caps 1 to prevent the tubular element B from leaving the plane of its associated elements A.
Patent GB-991609-A (GB)
Title: Improvements in or relating to coverings for roofs and walls
IPC: E04D3/362
Filed: 1961-07-17
Abstract: 991,609. Roof or wall coverings. E. ESS. July 17, 1961, No. 25804/61. Heading E1V. A covering for roofs and walls comprises aluminium sheets engaging at their edges, and profiled brackets for attaching them to a supporting structure. The marginal strip of one longitudinal edge of each sheet 11 is folded back at 12 and forward at 13 in an S-section forming a groove, and has its extreme edge bent up to form a gutter. The marginal strip of the other longitudinal edge is bent into an outstanding rib 15 with the extreme edge bent in the original direction of the sheet and engaging the groove in the adjacent sheet. Each bracket 21 has a back 24 fitting the cross-section of the rib 15 and a foot 25 pressing down the end portion 14 of one sheet. The bracket 21 may be clamped or screwed to the supporting structure, which may be recessed to receive the bracket (Fig. 4, not shown). The groove 13 may be filled with cement or putty (Figs. 5, 6 not shown), in which case an upstanding bead is formed between the groove 13 and the upstanding end portion 14. Raised beads may also be formed in the bracket leg portion 22.
Patent GB-1513402-A (GB)
Title: Solar boilers
IPC: F24S23/71
Filed: 1975-06-17
Abstract: 1513402 Utilizing solar heat T KUME and S TSUMARA 17 June 1975 [21 June 1974 (2)] 25824/75 Heading F4U A reflector unit for a solar heat boiler 23 comprises a multiplicity of cylindrically curved mirrors of keystone shape in plan view, Fig. 2, not shown, mounted on a driven reflector frame 15 in a concave spherical arrangement to form a reflector surface with their curved sector lines or circular lines concentric with the optical axis of the arrangement so as to reflect incident rays and bring them into coincidence at a focal region f at the boiler. The boiler unit is supplied with water through an insulated line 24 and is directed by one or more nozzles as a film over the inner surface of the boiler wall which may be convex or concave, Figs. 10 and 13, not shown. The cylindrically curved mirrors may each be formed by a flexible plate, Fig. 11, not shown, coated with tin by vapour deposition and given curature by deformation between upper and lower curved members.
Patent GB-617795-A (GB)
Title: Improvements in or relating to fuel injection nozzles
IPC: F02M61/06
Filed: 1946-08-28
Abstract: 617,795. Liquid-fuel burners. RICARDO, H. R., HOLT, G. A., BROOK, K., and C.A.V., Ltd. Aug. 28, 1946, No. 25854. [Class 75 (i)] [Also in Group XXVII] A fuel spraying nozzle comprises a valve part F seating at B and carrying a pintle G closing the main injection orifice C and forming an annular chamber H into which open one or more additional orifices J. Fuel supplied from a pump to the space D lifts the valve F and is injected solely through the orifice J until the pintle G is raised sufficiently to open the orifice C. Hence at low rates of fuel supply the bulk of the fuel passes through the orifice J, whilst at high rates the bulk passes through the main orifice C.
Patent GB-1145203-A (GB)
Title: Addition copolymers for use in surface coating compositions and compositions containing these copolymers
Inventor: GILKES KENDRICK BERNARD
IPC: C08F283/01
Filed: 1966-06-10
Abstract: 1,145,203. Copolymers of unsaturated polyesters. BP CHEMICALS (U.K.) Ltd. 16 May, 1967 [10 June, 1966], No. 25861/66. Headings C3P and C3R. Copolymers of unsaturated polyesters with olefinically unsaturated monomers are prepared by reacting an unsaturated dicarboxylic acid or anhydride, a saturated polycarboxylic acid or anhydride, a polyhydroxy alcohol having at least three free hydroxyl groups and a glycidyl ester of an aliphatic carboxylic acid having an acid chain length of 4 to 27 carbon atoms to give an unsaturated polyester having an acid value of 30 milligrams of potassium hydroxide per gram or less and copolymerizing 10 to 90% by weight of the unsaturated polyester with 90 to 10% by weight of a mixture of monomers comprising an olefinically unsaturated monomer providing reactive hydrogen atoms and one or more olefinically unsaturated monomers which do not provide such reactive hydrogen atoms. By " reactive hydrogen atoms " is meant ones which will react with epoxide groups. In the examples are used: phthalic anhydride, glycerol, maleic anhydride, a glycidyl ester of a branched C 9-11  saturated aliphatic acid, xylol, styrene, butyl acrylate, methacrylic acid, cumene hydroperoxide, tertiary dodecyl mercaptan, polyethylene glycol, ditertiary butyl peroxide, acrylic acid, 2-ethyl hexyl acrylate, itaconic acid and n-butanol. Coating compositions comprising the copolymers and butanol etherified melamine formaldehyde resins and titanium dioxide are also prepared.
Patent GB-322753-A (GB)
Title: Improvements in musical toys
IPC: G10D7/02
Filed: 1928-09-10
Abstract: 322,753. Myers, H. A., and Hickok, A. S. Sept. 10, 1928. Musical whistles. - A musical toy, preferably composed of moulded edible material, has a number of longitudinal chambers 10 of different lengths with corresponding mouthpiece apertures 10a of the shape shown. In a modification, the upper surface-wall 1 may consist of a separately attached coverplate. Materials specified are candy, wax, resin, paraffin gum, and (for the cover) paper or cardboard, and gelatin.
Patent GB-1437818-A (GB)
Title: Electrodeposition of chromium
IPC: C25D3/04
Filed: 1973-05-31
Abstract: 1437818 Electro-depositing chromium BRITISH CHROME & CHEMICALS Ltd 23 May 1974 [31 May 1973] 25984/73 Heading C7B In the electro-deposition of Cr from a bath based predominantly on Cr<SP>3+</SP> and halide, the bath is replenished during electrolysis by adding Cr<SP>6+</SP> at or near the anode at a rate such that a positive Cr<SP>6+</SP> concentration of up to 0À2 gpl (calculated as Cr) is maintained at the cathode (by which is meant as close to the cathode as Cr<SP>6+</SP> can exist but outside the surface layer of Cr<SP>2+</SP>). Replenishment may be via a water soluble compound, e.g. CrO 3 , or a soluble Cr anode. A pH below 3 may be maintained e.g. by adding HCl or H 2 SO 4  when using a Cr anode or NH 4 OH when CrO 3  is added. To prevent excess Cr<SP>6+</SP> build up either a reducing agent is added as required e.g. H 2 O 2  or, when Cr anodes are used, a mixture of Cr and inept (e.g. carbon) anodes is used. The bath may contain CrCl 3  and/ or a complex Cr halocarboxylate, the specified components being NH 4 Cl, Na Cl, B(OH) 3  and an aprotic solvent e.g. dimethyl formamide.
Patent GB-360550-A (GB)
Title: Method and device for casting ingots
IPC: B22D7/06
Filed: 1930-09-02
Abstract: 360,550. Ingot moulds. HIRSCH, KUPFERUND MESSINGWERKE AKT.- GES., Messingwerk, near Eberswalde, Germany. Sept. 2, 1930, No. 26164. Convention date, Sept. 6, 1929. [Class 83 (i).] Electricity, heating by.-An ingot mould 1 has an induction coil 3 arranged around its upper portion and a water jacket 2 around its lower portion to prevent piping. The water jacket may extend over the coil or this may be separated from the mould wall by a heat insulator 4.
Patent GB-260268-A (GB)
Title: Shaving composition and its method of use
Filed: 1926-10-20
Abstract: 260,268. Regard, G. L. Oct. 20, 1926. Cleansing-compositions.-A product for proprotecting the skin against the irritating action of the razor, to be applied before lathering, consists of olive oil, neutral wool fat, paraffin, starch, talc, glycerine, perfume, gelatine, and water. The product may be formed into sticks with the aid of an agglutinant such as gelatine. The Specification as open to inspection under Sect. 91 (3) (a) describes also a composition comprising a perfume, a fatty body, and a mineral exipient. This subject-matter does not appear in the Specification as accepted.
Patent GB-424071-A (GB)
Title: Improvements in chain adjusting devices of cycles
IPC: B62M9/16
Filed: 1933-09-23
Abstract: 424,071. Cycle chain - adjusters. CYCLO GEAR CO., Ltd., and CAMILLIS, L., 92, Bath Street, Birmingham. Sept. 23, 1933, No. 26256. [Class 136 (iii)] In cycle chain-adjusters of the type comprising slotted eye-bolts 4, 5 which are adapted to engage the wheel spindle mounted in slots 3 in the fork ends 1 and are provided with a pivotal connection to the fork ends 1, so that they can be swung out of engagement with the wheel spindle to facilitate removal of the wheel, the pivotal connection comprises a sleeve 7 slidably engaged with the shank 5 and provided with a rigid transverse peg 8, which is revolubly mounted in a hole in the fork end 1 and is screw-threaded at 9 to receive a securing-nut 10, the exterior of the sleeve 7 forming an abutment for the adjusting-nut 6. The threaded part 9 is reduced as shown to form a shoulder against which the nut 10 is screwed.
Patent GB-1281544-A (GB)
Title: Improvements in or relating to method of treating ferrite structures
Inventor: CASE DEREK FRANK
IPC: H01F1/03
Filed: 1969-05-23
Abstract: 1281544 Magnetic structures INTERNATIONAL COMPUTERS Ltd 11 May 1970 [23 May 1969] 26318/69 Heading H1H [Also in Division B6] The permeability of a magnetic structure, formed from at least two ferrite elements which have been shaped by mechanical working and are joined by a bonding element, is raised by immersing the structure in a solution which etches the ferrite, rinsing and drying. The bonding element, which should not be attached by the etchant, may be glass, enamel or resins. Specifled structures are. of glass-bonded Ni-Zn ferrite and Ni-Mn ferrite. Specified etchants are cone. HCl, cone. H 3 PO 4 , a 50% solution of sodium phosphate, in H 3 PO 4  and a 50/50 oxalic acid/sulphuric acid mixture. The immersion time may be e.g. 3 seconds to 5 minutes at 75‹ to 150‹ C. Reference has been directed by the Comptroller to Specification 964, 163.
Patent GB-683621-A (GB)
Title: Improvements in or relating to electric transformers
IPC: H01F27/38
Filed: 1949-10-14
Abstract: 683,621. Transformers. GENERAL ELECTRIC CO., Ltd., and FRIEDLANDER, E. S. Oct. 13, 1950 [Oct. 14, 1949], No. 26462/49. Drawings to Specification. Class 38 (ii). An electric transformer having primary and secondary windings arranged on a limb of the transformer core, has an additional winding arranged to be connected to form a part of a circuit comprising two windings with equal numbers of turns both arranged to embrace the main magnetic flux in the transformer limb and to be connected in parallel as regards this main flux but to be connected in series as regards the leakage flux between the primary and secondary windings, the circuit being comprised of the additional winding and either the primary or secondary winding or a further additional winding, and having a high resistance compared with the resistance of the primary and secondary windings, so as to form a damping circuit to reduce or prevent oscillation due to the leakage flux. The additional windings are arranged so as to embrace the transformer leakage flux. A frequency responsive element, such as a capacitor, may be included in the damping circuit so as to reduce the circulating currents therein at the supply frequency. A resistance may also be placed in the damping circuit.
Patent GB-666826-A (GB)
Title: Improvements in or relating to anchors
IPC: B63B21/46
Filed: 1949-10-18
Abstract: 666,826. Anchors. DIAL, G. E. Oct. 18, 1950 [Oct. 18, 1949], No. 26700/49. Class 113 (i). In a ship's anchor having a slotted shank 1, an anchor head, a pivot connection between the anchor head and the shank, and a pair of flukes 7 upon the head of cruciform cross section, projections are formed on the anchor head, part of them being inclined laterally in the direction of the flukes and part in a direction away therefrom. The head comprises an arcuate member 6 on the concave side of which the flukes 7 are secured as by welding, claws 9 being formed by the extension of the arcuate member on each side beyond the width of the flukes, rearwardly projecting claws 10 formed on the convex side of the arcuate member, and an internal inverted V-shaped member 8 spanning the concave side of the arcuate member and serving as a bearing for the pin 4 connecting the shank 1 to the anchor head. Specifications 570,950, 647,932 and 647,933 are referred to.
Patent GB-241950-A (GB)
Title: An improved rolling mill for rolling tubes
IPC: B21B17/14
Filed: 1925-10-24
Abstract: 241,950. Mannesmannr÷hren-Werke. Oct. 27, 1924, [Convention date]. Rolling.-A tube mill comprises a pair of driven rolls a<1> co-operating with a pair of idle rolls b<1> the axes of the four rolls being in the same plane to form a pair. A second pair of driven rolls a<2> co-operating with a second pair of idle rolls b<2> forms another pass. The idle rolls and driven rolls may differ in diameter.
Patent GB-887022-A (GB)
Title: Improvements in or relating to storage cabinets
Inventor: TRUP SIDNEY
IPC: A47B53/00
Filed: 1958-08-20
Abstract: 887,022. Cabinets. HOADLEY & SONS Ltd., H. Oct. 21, 1959 [Aug. 20, 1958], No. 26770/58. Class 52(1) An open-fronted storage rack 1 having secured thereto an upper overhanging assembly 2 and a base assembly of bars 6 has open-fronted cabinets 3, 4, 5 pivoted to the assemblies 2, 6 to open out for access or to form closures for the rack 1.
Patent GB-393454-A (GB)
Title: An improved method of reconditioning asphalt paving materials
IPC: E01C19/10
Filed: 1932-09-27
Abstract: An asphalt paving-composition is made from old asphalt pavings by pulverizing the old material, preferably in a pulverizer of the impact type; thereby increasing the voids of a heated and compressed sample as compared with a similarly treated sample of the unpulverized old material, further increasing the voids if necessary by the addition of sand and/or crushed stone, heating the mixture to about 350 DEG  F. while agitating, adding bitumen and/or flux oil and filler if desired to the heated mass, and thoroughly mixing, the amount of added bitumen, flux oil and filler being such that a heated and compressed sample has up to approximately 5 per cent of voids. In a modification, the pulverized material instead of being heated is placed in a pugmill mixer to which are added paraffin oil or the like in amount about 25 per cent of the weight of the bitumen in the material, sand and/or crushed stone to raise the voids to about 10 per cent, and bitumen cut back with 25 per cent of paraffin oil or the like, and filler, the amount of bitumen and filler being such that the mixture, after being laid, rolled and compressed by traffic, shall have from 1.5 to 5 per cent of voids.  All or any of the added ingredients are heated to approximately 200 DEG  F. prior to mixing.
Patent GB-984800-A (GB)
Title: Syringe
IPC: A61M5/315
Filed: 1962-07-12
Abstract: 984,800. Syringes. C. H. HAMILTON. July 12, 1962 [May 8, 1962], No. 26816/62. Heading F1R. A syringe of small capacity comprises a hollow needle 12 secured to a graduated transparent body 28, e.g. of glass, and a plunger 64 slidable within the needle and the body and guided by a member slidable within the body 28 so as to indicate the position of the plunger. In one embodiment, Fig. 1, the plunger is guided by a tube 50 fixed within body 28 and a tube 56 slidable within body 28 and over tube 50. An operating knob 58 is coupled to tube 56 and plunger 64. In another embodiment fixed guide tube 50 is omitted. A stuffing box 24 containing a compressed seal 70, e.g. of P.T.F.E., surrounds the plunger. A stop 40 is provided inside body 28. The plunger and needle are of different materials, e.g. tungsten and stainless steel, or platinum-ruthenium alloy and stainless steel.
Patent GB-482667-A (GB)
Title: Improvements in cases for storage of gramophone records
IPC: G11B33/04
Filed: 1936-10-03
Abstract: 482,667. Cases for gramophone records. BENDIX, C. A. Oct. 3, 1936, No. 26871. [Class 18] Disc gramophone records 15 are stored in a case 10 on a removable carrier comprising a disc 16 with an upstanding pin 17. The top of the latter is knurled and may fold down on to the pile of records. The disc 16 fits into a recess provided either in the bottom of the case or in an annular felt &c. layer 14. Several cases can be stacked either by forming a lip 11 on the base which takes over the upper edge of the next lower case, or by providing an outwardly projecting lip on the upper edge of a case into which fits the bottom of the next higher case. The top case in a stack has a lid 19. A case is made of wood or synthetic resin and is cylindrical or polygonal, e.g. octagonal shape.
Patent GB-482829-A (GB)
Title: Improvements in and relating to continuous feed motion picture cameras
IPC: G03B41/08
Filed: 1936-10-05
Abstract: 482,829. Kinematograph apparatus. STEPHENS, A. J. (S.M.M.H. Corporation) Oct. 5, 1936, No. 27005. [Class 97 (i)] In a continuous-feed camera having a rotating glass block P for compensation, a negative lens Ln is provided in front of the objective Lp to enlarge the field of view of the image produced on the film f. The focal length of the negative lens is at least equal to, and preferably greater than the focal length of the objective. The block P may be between the lens Lp and the film, or between the two lenses.
Patent GB-1150429-A (GB)
Title: Polymer Compositions
IPC: C08L75/14
Filed: 1966-06-17
Abstract: 1,150,429. Unsaturated polyurethane resinrubber compositions. SINCLAIR RESEARCH Inc. 17 June, 1966 [18 June, 1965; 22 March, 1966], No. 27108/66. Headings C3P and C3Q. A composition comprises a hydrocarbon rubber and a polyurethane resin made by reaction of a diisocyanate with a polymer which is an addition polymer of 0 to 75% by weight of an alpha-mono-olefinic monomer of 2 to 12 carbon atoms and 100 to 25% by weight of a C 4  to C 12  conjugated diene, which polymer has an average of at least 1À8 predominantly primary, terminal, allylic hydroxyl groups per molecule, has a viscosity at 30 C. of 5 to 20,000 poises, has a number average molecular weight of 400 to 25,000, and has the majority of its unsaturation in the main hydrocarbon chain, said polyurethane being uncured or only partially cured when blended with said rubber. If desired, the polyurethane can be modified by the presence of diamines, glycols, &c. Suitable diene prepolymers are homopolymers of butadiene and copolymers of butadiene and styrene or acrylonitrile. Exemplified rubbers are natural rubber, ethylene propylene terpolymer, styrene-butadiene rubber and nitrile rubber.
Patent GB-1208545-A (GB)
Title: Improvements in interference suppressor connection plugs for distributors
IPC: H01R13/46
Filed: 1969-05-29
Abstract: 1,208,545. Two part couplings. G. MERTEN and W. MERTEN, [trading as MERIT-WERK MERTEN & CO. K.G.]. 29 May, 1969 [1 Oct., 1968], No. 27210/69. Heading H2E. An interference suppressor plug for a distributer in motor vehicles has a choice of cable inlets, either axial 6 or radial 5. Electrical connection to a cable (not shown) is made by a radial clamping bolt 8 screwed through a contact plate 7 which is mounted in an insulating housing 1 and contacts one end of a suppressor resistor 2 the other end of which is connected to a contact 3. A resilient insulating plastics cap (9) is provided with holes (10, 11, 12) in positions corresponding to the cable inlet holes 5, 6 and the radial bolt 8. The holes are blocked by plugs (13, 14, 15) of which the selected ones may be easily removed. The bolt 8 may be replaced by any suitable contact, although the clamping action is preferably in a direction perpendicular to the cable axis.